How to break out of a while loop inside a function block ?
8 vues (au cours des 30 derniers jours)
Afficher commentaires plus anciens
Prashanth Krishnan
le 28 Juil 2015
Commenté : Camile van der Heijden
le 1 Mar 2018
I'm trying to break out of a while loop when a key is pressed and I've achieved this through the following code snippet -
keep = 1;
h = figure('KeyPressFcn','keep=0');
while keep
pause(0.01)
end
close(h)
I need to incorporate this into a GUI. But when this exact same code snippet is inserted into a function block, I'm no longer able to break out of the loop. Here's a code for the same -
function calibrate()
keep = 1;
h = figure('KeyPressFcn','keep=0');
while keep
pause(0.01)
end
close(h)
How do I get this to work ?
Thanks !
1 commentaire
Muthu Annamalai
le 28 Juil 2015
Please use {} Code editor feature to make your code more readable to others.
Réponse acceptée
Jon
le 28 Juil 2015
Modifié(e) : Jon
le 28 Juil 2015
The search function is your friend. See https://ch.mathworks.com/matlabcentral/newsreader/view_thread/315080 for someone with the same problem, and an explanation and solution.
2 commentaires
Camile van der Heijden
le 1 Mar 2018
Unfortunately, the newsreader link Jon referred to is no longer available. I would love to know what it said though. Does it involve using flag variables?
Plus de réponses (1)
Muthu Annamalai
le 28 Juil 2015
Modifié(e) : Muthu Annamalai
le 28 Juil 2015
Changing your code to,
keep = true;
h = figure('KeyPressFcn',@() keep= ~keep );
while keep
pause(0.01)
sprintf('keep = %d',keep);
end
close(h)
may work. If this doesn't work, make keep an instance of a handle class.
Voir également
Catégories
En savoir plus sur Loops and Conditional Statements dans Help Center et File Exchange
Community Treasure Hunt
Find the treasures in MATLAB Central and discover how the community can help you!
Start Hunting!